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GLM-5.2

ReadyLanguageby Zhipu AI

Overview

About this model

GLM-5.2 marks a substantial leap in long-horizon task capability over its predecessor GLM-5.1 and, for the first time, delivers that capability on a solid 1M-token context. GLM-5.2's new capabilities include: Solid 1M Context: A solid 1M-token context that stably sustains long-horizon work Advanced Coding with Flexible Effort: Stronger coding capabilities with multiple thinking effort levels to balance performance and latency Improved Architecture: We propose IndexShare, which reuses the same indexer across every four sparse attention layers, reducing per-token FLOPs by 2.9× at a 1M context length. We also improve GLM-5.2’s MTP layer for speculative decoding, increasing the acceptance length by up to 20% Pure Open: An MIT open-source license — no regional limits, technical access without borders

Specifications

Model details

Provider
Zhipu AI
Modality
Language
Pricing
$1.00 in · $4.00 out / 1M

API

Call it in code

One OpenAI-compatible API. Swap the model id and you're done.

from openai import OpenAI

client = OpenAI(
    base_url="https://api.ecohash.com/v1",
    api_key="YOUR_API_KEY",
)

response = client.chat.completions.create(
    model="GLM-5.2",
    messages=[{"role": "user", "content": "Hello!"}],
    stream=True,
)

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